“Are men just wired for random killing” No. Well, some of them are somewhat set up for it, due to our dysfunctional culture which has men shut down their compassionate/emotional aspects, swallow shame and upset, silence dissent, bury anger, require subservience, have no emotional support, never effectively reach adulthood, etc. Our society does create undeveloped men with lots of unreleased extreme rage and far too little allowed outlets or adult listening for it, leading to crazy violent outbursts. “or is “airing out” schools like other “sports” where men establish the way initially, and the women’s leagues follow.” No. Not that some women might not at some point. But a lot of violence gets a strong boost from testosterone, which most women don’t get so much of. Also, women tend to have more emotional resources, strategies, and listening available to them. And our culture doesn’t train them to relate to violence in the same ways it trains men to relate to violence.